LIBRO vs PKU Bite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LIBRO
This AI-powered health assistant helps you track diet, exercise, and lifestyle goals with features like voice logging and a barcode scanner. It offers personalized suggestions and meal planning tools. Access is currently by invitation only from an accredited nutrition professional.
- AI-powered health tracking
- Voice logging
- Barcode scanner
- Personalized suggestions
- Diet and activity logging
- Meal planning
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LIBRO is an AI health assistant designed to track your diet, exercise and lifestyle goals. ** LIBRO is currently available by invitation only ** You must have been invited by an accredited nutrition professional to use this app. Logging has never been this easy! A personalised voice assistant and barcode scanner help you to log foods and a unique memory system automatically suggests what you have previously eaten based on the meal occasion. LIBRO was created by Nutritics, the world's leading provider of professional nutrition software.With key features such as diet and activity logging, recipe and cost analysis, meal planning and a label maker, Nutritics is constantly defining new ways to empower the world to make better food choices. We love feedback! Just drop us a line at support@nutritics.com and let us know how you get on.
PKU Bite
This app helps individuals with phenylketonuria (PKU) manage their low-phenylalanine diet. It provides information on over 1100 foods, categorizing them by protein content and offering recipes and preparation tips. An integrated calculator assists in tracking daily protein intake.
- Food database with over 1100 items
- Low-protein, high-protein, and exchangeable food categorization
- Traffic light color-coding system
- Food preparation and recipe suggestions
- In-built protein exchange calculator
- Search by food name or category
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PKU Bite is an app for people with phenylketonuria (PKU) or their families or carers. A low phenylalanine diet is the main treatment for PKU. Phenylalanine is found in protein, so protein containing foods need to be restricted. It cannot be removed from the diet completely as it is needed for growth and repair in the body. In PKU protein is given in measured amounts each day, known as exchanges. Knowing which foods contain protein and in what quantity is difficult to remember. Reading and interpreting food labels on manufactured foods can be particularly confusing. PKU Bite contains information on over 1100 foods. It describes which foods are low in protein and so can be eaten without measuring (‘exchange free foods’), foods which are high in protein so best avoided, and foods which need to be calculated as part of the daily protein/phenylalanine exchange allowance. Foods are colour coded using the traffic light system used by the patient support group, NSPKU. Each food has information on: what the food is, food preparation, storage, availability, menu ideas and recipes. Foods can be searched for by name or by food category. An inbuilt calculator enables the user to enter protein values from food labels and it will calculate the number of protein exchanges per 100g or per portion of the food. ***Disclaimer*** This application does not replace individual dietary advice, please consult your doctor or healthcare professional if you need diet or treatment information. This application is based on guidelines within the United Kingdom, other countries and territories may have different guidelines, please check with your doctor or healthcare professional before use.
Screenshots
Verdict
The clearest difference is update cadence: PKU Bite at every 4 weeks against LIBRO's every 7 months. On price, review sentiment, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
LIBRO ships an update every 7 months, PKU Bite every 4 weeks. The most recent releases landed on October 11, 2026 and September 28, 2026 respectively.
| Parameter | LIBRO | PKU Bite |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) — better | — |
| Positive reviews | 4.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 7 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 10 MB | 45 MB |
| Age rating | 4+ | 17+ |
| Developer | Nutritics Limited | Imobisoft Ltd |
Customer experience
LIBRO
PKU Bite
In-app purchases
LIBRO
No in-app purchases
PKU Bite
No in-app purchases









